EDS Subject Research Relevance Ranking

Return the Best Possible Search Results

EBSCO Discovery Service brings together the most comprehensive collection of content, while providing users with the ease and simplicity that comes with delivering the top results on the first page. To keep pace with a continuously growing collection of content from publisher partnerships, our customers' catalogs and institutional repositories, as well as the rich metadata that comes with top subject indexes, EDS employs a multi-faceted relevance ranking methodology that is the foundation of our premier search and discovery platform.

Maximizing Accuracy with Field Ranking

Every record in EBSCO Discovery Service contains numerous fields that can assist the user in locating the information they seek. How a field is used by a search engine determines the relevance ranking, and thus how high on the search results, any given record appears for a search. With exact matches favored over partial matches, the most influential fields in EDS are:

  • Matches on subject headings
  • Term appearance in the title
  • Author-supplied keywords
  • Keywords within abstracts
  • Match on keywords in the full text

Additional fields are employed for relative weighting, and these fields can change over time as we continually strive to improve our relevance scoring system.

Superior Value Ranking

Recognizing that the value of a record is not derived only from terms from the user, EBSCO Discovery Service takes into account certain attributes when determining the relevance. Specific attributes that are considered include:

  • Currency in publication means that more recent articles will rank higher
  • Type of publication in relation to the search terms
  • Peer-Reviewed status assists the academic researcher in quickly locating key information in their field
  • Length of article ensures that when other factors are equal, a shorter article is considered less valuable
  • Learn more about how EDS relevance ranking works

It’s imperative to have a strong relevance ranking system in place so that users not only find relevant results, but also the best possible results—right on the first page of the result list.